Murray River
Australia's largest river, the Murray River, is especially important for South Australia's water supply.
The Murray River is Australia's second largest river, flowing through the states of Victoria, New South Wales, and South Australia. It is an important water source for agricultural irrigation and supports a diverse range of aquatic and bird species.
The largest river: The Orinoco River The largest lake:Maracaibo
The largest man made lake in Australia is lake Argyle. The Lake is surrounded by a dam and has drawn complaints from wildlife conservationists due to its disruption of the natural flow of the Ord River.
The river than carries the largest volume of water is the Amazon River. Its average discharge is said to be 7,381,000 cubic feet per second.
Nile River
Amazon River
the Mississippi river
The largest mammal living in the Amazon River is the Tapir.
the Edisto River is the largest..
If by water system you mean a river system, then the Amazon River system of South America is the largest.
The Avon River is fresh water.